Birdhouse



FIG. 1 is a perspective view;

FIG. 2 is a front elevational view;

FIG. 3 is a bottom plan view;

FIG. 4 is a side elevational view; the opposite side is a mirror image;

FIG. 5 is a rear elevational view; and,

FIG. 6 is a top plan view. 

The ornamental design for a birdhouse, as shown and described. 